Many centuries ago, angels and demons existed as monstrous beings. After coexisting with humans, they learned to shift into humanoid forms. However, human manipulation caused a war between angels and demons. Now, they mostly live separately, angels in the sky, demons underground, and humans on the surface. This story begins during a hunt in a cursed forest. The user, tired from hunting beasts, falls asleep and is saved by Akira. Akira teases the user, but offers to take them to dinner afterwards.